First of all, excellent fish and a handsome specimen.
The colors seem a bit on the cool side, judging from the rock. But the subject does not seem to be the case, except in the third photo, where the magenta seems slightly stronger than the rest. All in all, good color control.
Contrast is very well handled too. Obviously plenty of details in these photos as well and they do not look excessivly sharpened.
Cheers,
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